#2D5197
Closest named color: Dusk Blue (#26538D). oklch(44.7% 0.122 262.2), rgb(45, 81, 151).
Aa
White text reads best on this color (7.67:1).
About this color
#2D5197 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.122 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.020 away. White text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #2D5197 |
| RGB | rgb(45, 81, 151) |
| HSL | hsl(220, 54%, 38%) |
| OKLCH | oklch(44.7% 0.122 262.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #2D5197 | 7.67:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #2D5197 | 2.73:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #2D5197 text on white | 7.67:1 | AAA | Lc 86.4 | Fine for body text |
| #2D5197 text on black | 2.73:1 | Fails | Lc -15.7 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CBDAF4
oklch(88.5% 0.039 261.5)
-
Step 300
300
#A8C1EF
oklch(80.8% 0.071 262.5)
-
Step 400
400
#79A0E8
oklch(70.7% 0.115 262.1)
-
Step 500
500
#5787E1
oklch(63.2% 0.146 261.9)
-
Step 600
600
#3D6ECF
oklch(55.5% 0.159 262.3)
-
Step 700
700
#2F5CB3
oklch(49.2% 0.147 262)
-
Step 800
800 (this color)
#2D5197
oklch(44.7% 0.122 262.2)
-
Step 900
900
#254074
oklch(37.9% 0.095 262.2)
-
Step 950
950
#162644
oklch(27.2% 0.06 262)
#2D5197 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #2E589A | 0.020 |
| Deuteranopia (no green cones) | #194F96 | 0.019 |
| Tritanopia (no blue cones) | #00616C | 0.099 |
| Achromatopsia (no color) | #535353 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5197
#2D5197
oklch(44.7% 0.122 262.2)
- #6D4E00
#6D4E00
oklch(44.6% 0.092 82.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #2D5197, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.020
- Cobalt #1E488F ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.037
- Light Navy #155084 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.040
- Twilight #4E518B ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.047
- Blueberry #464196 ΔE 0.049
Use #2D5197 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.